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Zakład Ubezpieczeń Społecznych (ZUS), the Polish social insurance service, has more than 40,000 employees, 43 affiliated agencies, 216 supervision departments, and 67 foreign branches, providing social insurance services for 24 million Poles.
Their Kompleksowy System Informatyczny (KSI) processes more than 100 million transactions each month and has 40 TB of stored data. The original network covered more than 500 branches. ZUS upgraded the network for multimedia services with data, voice, and video service products and solutions provided by Huawei and its partner.
ZUS’s information-based office construction requires Office Automation (OA), information-based management, and information sharing. They needed a comprehensive network upgrade to improve network O&M efficiency while lowering investment costs. The original network faced several challenges:
Huawei provided an information-based, multi-service convergence solution with a unified flat-network architecture.
Huawei deployed S-series LAN switches in aggregation and core layers of the network. Each LAN switch supports as many as 480, 10 Gbit/s interfaces for end-to-end, high-bandwidth and congestion-free Ethernet transmission. Huawei also deployed AR-series access routers in the 500+ branches to significantly improve network access. Hardware-based OAM/BFD technology is deployed to enable network failure detection within 10 ms, ensuring quick fault recovery so users are not aware of network faults.
To enhance system security, the solution uses BGP/MPLS VPN technology to isolate services, terminals, servers, and network resources at different levels and departments. The upgraded network has more bandwidth and uses IP PBXs, IPSec VPNs, WLANs, and firewalls to integrate data, voice, video, security, and wireless services. PoE devices use inexpensive twisted-pair cabling for data and power connections, simplifying cabling and reducing investment costs.
The solution provides several valuable benefits: